import stockholm's deployment tools

https://cgit.krebsco.de/stockholm 877b4104370c1ea9698a449e376e2842d7c372fd

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/default.nix b/lib/default.nix
new file mode 100644
index 0000000..7197fe9
--- /dev/null
+++ b/lib/default.nix
@@ -0,0 +1,56 @@
+let {
+
+  body = lib;
+
+  lib = nixpkgs.lib // builtins // {
+
+    evalSource = let
+      eval = source: lib.evalModules {
+        modules = lib.singleton {
+          _file = toString ./.;
+          imports = map (source: { inherit source; }) (lib.toList source);
+          options.source = lib.mkOption {
+            default = {};
+            type = lib.types.attrsOf lib.types.source;
+          };
+        };
+      };
+      sanitize = x: lib.getAttr (lib.typeOf x) {
+        set = lib.mapAttrs
+                (lib.const sanitize)
+                (lib.filterAttrs
+                  (name: value: name != "_module" && value != null) x);
+        string = x;
+      };
+    in
+      # This function's return value can be used as pkgs.populate input.
+      source: sanitize (eval source).config.source;
+
+    getHostName = let
+      # We're parsing /etc/hostname here because reading
+      # /proc/sys/kernel/hostname yields ""
+      y = lib.filter lib.types.label.check (lib.splitString "\n" (lib.readFile /etc/hostname));
+    in
+      if lib.length y != 1 then throw "malformed /etc/hostname" else
+      lib.elemAt y 0;
+
+    mkTarget = s: let
+      default = defVal: val: if val != null then val else defVal;
+      parse = lib.match "(([^@]+)@)?(([^:/]+))?(:([^/]+))?(/.*)?" s;
+      elemAt' = xs: i: if lib.length xs > i then lib.elemAt xs i else null;
+    in {
+      user = default (lib.getEnv "LOGNAME") (elemAt' parse 1);
+      host = default (lib.maybeEnv "HOSTNAME" lib.getHostName) (elemAt' parse 3);
+      port = default "22" /* "ssh"? */ (elemAt' parse 5);
+      path = default "/var/src" /* no default? */ (elemAt' parse 6);
+    };
+
+    test = re: x: lib.isString x && lib.testString re x;
+    testString = re: x: lib.match re x != null;
+
+    types = nixpkgs.lib.types // import ./types { lib = body; };
+  };
+
+  nixpkgs.lib = import <nixpkgs/lib>;
+
+}